Hedman headers

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Jan 17, 2008 | 08:52 PM

antunez13

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Hedman headers

These headers are 164.00 at summit has anyone had problems with these, http://store.summitracing.com/partde...5&autoview=sku

i want to run these with pipes out beside the front tires no muffler no cats, i also found some efi maifolds for like 40 dollars but none of the pluming seems like the full length headers would be better.

Jan 18, 2008 | 06:35 AM

Duke78

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Do a search on this forum their is a ton of info about these headers.

Jan 20, 2008 | 10:42 AM

Pkupman82

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From: Muskegon, MI (home)

I am running that particular set of headers on my 84 F150 4x4. So far overall I am very happy with them, the only thing I am not too crazy about is the ball type collector flanges. I had a difficult time getting them to stay tight, I did however find a cure for the problem. I installed longer bolts with stiff stainless steel springs on them and used jam nuts, they work great. No muffs or cats? Do you have any idea how loud that is going to be? I ran mine with open headers a couple times... whew sounds mean, almost demonic!

Jan 20, 2008 | 09:43 PM

IcemanV8

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What kind of power increase did you feel throughout your RPM range with those headers, pkupman82?

Jan 20, 2008 | 11:15 PM

Pkupman82

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From: Muskegon, MI (home)

Oh I don't know if I could give you actual numbers as far as performance gains. But it was very noticeable: much more low end torque, snappier throttle response, better acceleration, more upper rpm power. The header combined with the Offy intake and Holley 2bbl carb really woke up my 300, and I gained a couple mpg from it also. Headers are most definately worth it IMO.

Jan 21, 2008 | 10:37 AM

IcemanV8

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Awesome. Which truck feels the best, now? The 1984 or the 1996? I know it's hard to say, really, since one is a 4spd and one is a 5spd.. Well, what kind of 4-speed do you have? NP435? Or one with OD?

Jan 21, 2008 | 03:14 PM

fordguy300

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From: THEHAUTE

would headers on a efi motor have the same gains? dont mean to jack your post or anything but wondering im 15 so i dont know a whole lot about that kid of thing.